Wilson's place is an excellent choice if you need to be close to Sukhumvit. Just a few hundred metres down Soi 12, it offers ready access to Asok BTS, Sukhumvit MRT, Terminal 21 and Benjakitti Park. It has everything you need for a clean and comfortable stay (including a washing machine) with an efficient air conditioner and large screen TV. Whilst eating out is cheap, a two-burner hob and microwave means you can cook in the unit if you wish. There is street food and proper restaurants in the soi and two 7-11's nearby, meaning you are never short of meal options.
Book here - you will not regret it.